Wrench.



P. CHMPLIN.

WRENCH.

APPLICATION FILED MAY I6. Ism.

Patented Sept. 11, 1917.

1r srcru naar rica.

PORTER CHAIVIPLN, OF POWERS LAKE, NORTH DAKOTA.

WRENCH.

Lacasse.

T0 all whom it may concern.'

Be it known that I, PORTER' CHAMrLIN, a citizen of the United States, residing at Powers Lake, in the county of Burke, State of North Dakota, have invented a new and vuseful IVrench; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved Wrench, adapted for turning nuts and the like.

One of the objects ofthe invention is the provision of a wrench having a jaw disposed substantially on a forty-five degree angle, in combination with a shank provided with a guide, said shank being detachably connected to the handle of the wrench, whereby a second jaw of the wrench may be mounted in or removed from the guide of said shank.

A further object of the invention isthe provision of guide means at right angles to the stationary jaw, which is on a forty-five degree angle, whereby the removable jaw may be guided toward and from the stationary jaw.V

A further object of the invention is the provision of means in the guide of the shank for adjusting the removable jaw.

A further Object of the invention is the.

provision of an improved wrench having its jaws disposed whereby nuts or the like may be more conveniently and efficiently handled in obscure places.

In practical fields, the details of construction may necessitate alterations falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings Figure 1 is a view in side elevation of the improved wrench, constructed in accordance with the invention.

Fig. 2 is a view in side elevation showing the jaws of the wrench closed.

Fig. 3 is a longitudinal sectional view.

Fig. 4 is an edge view of the wrench.

Fig. 5 is a sectional view on line 5 5 of Fig. 2, through the coperating jaws.

Referring more especially to the drawings, 1 designates a handle of the wrench, the opposite sides of which are provided with suitable depressions 2 having serra- Specification of Letters Patent. Patented Slept. lll, 1917.

Application filed May 16, 1917.

Serial No. 169,103.

tions 3, whereby the hand of the user mayl jaw or nut engaging face 9 is disposed sub-v 1" stantially on a forty-five degree angle to the handle ofthe wrench.` The jaw 8 provided with a shank 10, constructed'with a bifurcation or guide 11. and the forks 12 of said shank are secured upon the pins 7 between said ears 5 of said handle, as shown in Figs. 2 and 3 clearly. Mounted in the guide or bifurcation 11 so that its opposite recesses 13 will receive the adjacent edges of the forks 12, is an adjustable or sliding block or cross head 14. The outer faces of this block or cross head are provided with guide grooves 15 extending at right angles to the recesses 13. A suitable screw 16 is threaded into the sliding block or cross head 14, and has its extremity 17 engaging the crotch of the guide 11, while its other reduced end 18 engages the socket 19 of one end of the handle 2. The screw 16 has a knurled enlargement 20, in order to be turned by the thumb, for adjusting the sliding block or cross head in the guide 11. The movable or adjustable jaw 21 is also disposed substantially on a forty-five degree angle to the handle of the wrench, so as to coperate with the jaw 8. 0n the end of the shank 10 adjacent the jaw 8, a comparatively thin blade 22 is constructed, and on opposite sides of this blade, where it merges into the jaw 8, are guide openings 23. The jaw 21 is provided with a bifurcation 24, and this bifurcation, adjacent its crotch, is of a thickness sufficient to receive the blade 22. The jaw 21 is provided with spaced projectingblades 25, between which the blade 22 extends, while the blades 25 pass through the guide openings 23. The

adjacent walls of the bifurcation beyond that portion which receives the blade 22, are provided with guide recesses 26, to receive the opposite ribs 27 of the shank 10. The ribs 27 extend at right angles to the nut en gaging face 9, as shown in Figs. 1 and 2 clearly. The adjacent faces of the bifurcation-24, at the extremities of the forks 28 of the jaw 21 are provided with transverse guide grooves 29 (which receive the ribs 30 of the sliding block or cross head) and the adjoining ribs S31, which engage the guide grooves 15 of the outer side faces of said sliding block or cross head. It is to be noted that by turning the screw 16, by manipulating the knurled enlargement 20, the sliding block or cross head will be adjusted in its guide 11 in one direction 'or the other. When moving the sliding block or cross head toward the outer end of its guide, the jaw 21 Will be moved toward the jaw 8, and a reverse movement of the sliding` block or cross head will move the jaw 2l in the opposite direction, said jaw 2l all the While being accurately adjusted.

The invention having been set forth, what is claimed as new and useful, is

In a Wrench, a handle, a stationary jaw having its jaw face substantially at a fortyfive degree angle to the handle and having guide openings and provided with an adjoining blade, said stationary jaw having a shank, provided with a guide and being connected to the handle, a block'or cross head slidably mounted in the guide and provided on its outer face with transverse guide grooves, a movable Ijaw having a bifurcation, the crotch of which receives said blade, the adjacent faces of the bifurcationV having grooves, said shank adjacent the stationary jaw having ribs to engage said grooves, said movable jawv having forks caused to be formed by said bifurcations, said forks. of the movable jaw having means tol engage the transverse guide grooves of saideblock, and a screw having one end in a bearing of the handle and its other end engaging the crotch of the guide V-of said shank, and threaded through the block for adjusting the same. L

In testimony whereof .I have signed my name to this specification in the presence of two subscribing witnesses.

PORTER CHAMPLIN.

lVitnesses Y T. P. BORGEN, -L. J. BERGSTEN.

'Copies of this patent may be obtained for ve cents each,rby addressing the Commissioner of Patents.

Washington, I). C. Y 

